MattCPR 2 Posted April 2, 2018 Is it normal for the rear fog light switch to lose its illumination when turned on? Got no power going to the rear fog and none at the fuse box so I’m thinking switch? Share this post Link to post Share on other sites
Anthony 1,000 Posted April 3, 2018 The switch should light up brightly when switched on. If it doesn't illuminate when switched on, I think that's an MOT failure. You can swap the fog lamp and heated rear window switches around to test whether it's a switch problem or something else. Share this post Link to post Share on other sites
Davidsw 4 Posted April 29, 2018 Check the rear passenger light cluster for corroded conectections . This is where they have a common link . Share this post Link to post Share on other sites